cpumap.h
#ifndef _CPUMAP_H
#define _CPUMAP_H
#ifdef CONFIG_SMP
extern void cpu_map_rebuild(void);
extern int map_to_cpu(unsigned int index);
#define cpu_map_init() cpu_map_rebuild()
#else
#define cpu_map_init() do {} while (0)
static inline int map_to_cpu(unsigned int index)
{
return raw_smp_processor_id();
}
#endif
#endif